We investigate the evolution of dust content in galaxies from redshifts z=0
to z=9.5. Using empirically motivated prescriptions, we model galactic-scale
properties -- including halo mass, stellar mass, star formation rate, gas mass,
and metallicity -- to make predictions for the galactic evolution of dust mass
and dust temperature in main sequence galaxies. Our simple analytic model,
which predicts that galaxies in the early Universe had greater quantities of
dust than their low-redshift counterparts, does a good job at reproducing
observed trends between galaxy dust and stellar mass out to z~6. We find that
for fixed galaxy stellar mass, the dust temperature increases from z=0 to z=6.
Our model forecasts a population of low-mass, high-redshift galaxies with
interstellar dust as hot as, or hotter than, their more massive counterparts;
but this prediction needs to be constrained by observations. Finally, we make
predictions for observing 1.1-mm flux density arising from interstellar dust
emission with the Atacama Large Millimeter Array.Comment: Accepted for publication in Ap
